Data Transformation Services
We take your data from files, spreadsheets, databases, APIs and legacy systems, then transform it into the exact structure and format your process needs.
Data transformation services from ETL Tools turn awkward source data into reliable target-ready data for you. We take the source data, apply the cleansing, validation, mapping, conversion and migration rules, then build a repeatable workflow around it. The goal is not a one-off spreadsheet rescue mission. It is a process you can run again without everyone holding their breath.
Data transformation work starts with the target you need
We take customer data from Excel workbooks, CSV files, XML, JSON, SQL databases, ODBC sources, APIs, SFTP folders, email attachments and legacy exports. The workflow then reshapes the data into the required target structure.
That may mean changing columns, calculating derived fields, validating codes, standardising dates, consolidating multiple sources, removing invalid rows or producing database-ready output. In practice, the target design matters as much as the source file.
Advanced ETL Processor is often used for the implementation because it keeps the transformation visible. A visual workflow is easier to test, explain and hand over than a mystery script called final_final_really_final.py.
Specialist data transformation services cover the common hard parts
Data Cleansing Services
Focused service page for data cleansing projects, with examples and practical delivery details. Read more.
Data Validation Services
Focused service page for data validation projects, with examples and practical delivery details. Read more.
Data Mapping Services
Focused service page for data mapping projects, with examples and practical delivery details. Read more.
Data Conversion Services
Focused service page for data conversion projects, with examples and practical delivery details. Read more.
Database Migration Services
Focused service page for database migration projects, with examples and practical delivery details. Read more.
ETL Automation Services
Focused service page for etl automation projects, with examples and practical delivery details. Read more.
Excel Data Transformation Services
Focused service page for excel data transformation projects, with examples and practical delivery details. Read more.
Legacy Data Transformation Services
Focused service page for legacy data transformation projects, with examples and practical delivery details. Read more.
Healthcare Data Transformation Services
Focused service page for healthcare data transformation projects, with examples and practical delivery details. Read more.
NHS Data Transformation Services
Focused service page for nhs data transformation projects, with examples and practical delivery details. Read more.
Repeatable workflows beat manual conversions
A manual conversion is fine for a tiny one-off file. It becomes risky when the same work repeats every week, every month or every reporting cycle.
We design workflows so the same rules can be rerun on new files, larger extracts or revised source data. That gives you validation reports, rejected-row handling and a clear route for changes when the source format moves the goalposts.
- Transformation rules are visible and testable.
- Raw source data can remain unchanged.
- Outputs can be reconciled against source counts and totals.
- The finished workflow can be operated by your team if required.
Send enough detail for a useful first answer
For a quote, include sample data if possible and describe the current source, required output and how often the process runs. A tiny example file is often more useful than a long meeting. Nobody has ever said that about a long meeting.
- Sample data or representative field list
- Source format and destination format
- Approximate record volume
- Transformation, validation and mapping requirements
- Processing frequency and delivery deadline
- Required output files, tables, reports or exception logs
Frequently Asked Questions
What data sources can ETL Tools transform?
We can work with common files, Excel workbooks, databases, APIs, XML, JSON, CSV, fixed-width files, email attachments, SFTP folders and legacy exports.
Can the workflow run more than once?
Yes. The preferred approach is a repeatable workflow that can process new files or new extracts using the same rules.
Can you hand over the transformation workflow?
Yes. We can run the process for you, hand over an Advanced ETL Processor workflow, or provide ongoing support.
When should we not use a service?
If the job is a tiny one-off cleanup that Excel can handle safely, you may not need us. Services make sense when the process repeats, the rules are complex, or errors are expensive.